Correct some 128-bit constexpr typos

BoostGSoC21 · Jan 14, 2025 · 223dba5 · 223dba5
1 parent 382cd8f
commit 223dba5
Showing 1 changed file with 3 additions and 12 deletions.
diff --git a/include/boost/multiprecision/cpp_double_fp.hpp b/include/boost/multiprecision/cpp_double_fp.hpp
@@ -2025,8 +2025,8 @@ constexpr void eval_convert_to(int128_type* result, const cpp_double_fp_backend<
       return;
    }
 
-   constexpr int128_type my_max_val = (((static_cast<int128_type>(1) << (sizeof(int128_type) * CHAR_BIT - 2)) - 1) << 1) + 1;
-   constexpr int128_type my_min_val = static_cast<int128_type>(-my_max_val - 1);
+   constexpr int128_type my_max_val { (std::numeric_limits<int128_type>::max)() };
+   constexpr int128_type my_min_val { (std::numeric_limits<int128_type>::min)() };
 
    using c_type = typename std::common_type<int128_type, FloatingPointType>::type;
 
@@ -2082,16 +2082,7 @@ constexpr void eval_convert_to(uint128_type* result, const cpp_double_fp_backend
       return;
    }
 
-   uint128_type my_max_val { };
-
-   BOOST_IF_CONSTEXPR(std::is_same<FloatingPointType, float>::value && (std::numeric_limits<float>::digits == 24))
-   {
-      my_max_val = static_cast<uint128_type>(FLT_MAX);
-   }
-   else
-   {
-      my_max_val = static_cast<uint128_type>(~static_cast<uint128_type>(0));
-   }
+   constexpr uint128_type my_max_val { (std::numeric_limits<uint128_type>::max)() };
 
    using c_type = typename std::common_type<uint128_type, FloatingPointType>::type;